Gun stock



FIG. 1 is a perspective view of the gun stock showing my new design.

FIG. 2 is a front elevation view of the gun stock of FIG. 1.

FIG. 3 is a rear elevation view of FIG. 2.

FIG. 4 is a top plan view of FIG. 2; and,

FIG. 5 is a bottom plan view of FIG. 2. 

The ornamental design for a gun stock, as shown and described. 